Linked from
The 14 pages that link to Vowel, each with the reason it gives.
PhoneticsRelated: Vowel quality varies with tongue position, lip shape, and vocal-tract resonance.
SyllableRelated: Vowels often anchor syllables, but a vowel and a syllable are not the same unit.
AbjadRelated: Abjads commonly omit these sounds from ordinary spelling.
DictionRelated: Vowel shape and duration carry much of a sung word's intelligibility.
Great Vowel ShiftNarrower topic: The shift affected the quality of English long vowels.
AccentRelated: Vowel quality is among the most noticeable sources of accent variation.
AssonanceNarrower topic: Assonance depends on recurring vowel sounds, not on matching letters.
DiphthongNarrower topic: A diphthong is a changing kind of vowel sound.
Mid central vowelNarrower topic: Mid central vowels belong to this broad class of speech sounds.